Borla 22-24 Nissan Z 2.5in ATAK Cat Back Exhaust 4.5in Tip - Carbon Fiber Black Anodized 2011-ford-f-150-xl-esi1879488 75" diameter Axle-Back system delivers

75" diameter Axle-Back system delivers the classic S-Type sound level with no drone inside the vehicle

S-Type Cat-Back™ Exhaust System

EXCEPT vehicles with Active Valve Exhaust (4 tips)

The exhaust exits thru dual 4" round polished T-304 stainless steel tips on each muffler

Borla 22-24 Nissan Z 2.5in ATAK Cat Back Exhaust 4.5in Tip - Carbon Fiber Black Anodized 2011-ford-f-150-xl-esi1879488 75" diameter Axle-Back system deliversThis system is a True Dual design that features a Resonator with an Internal H Pipe, Polyphonic Harmonizer technology, and SwitchFire(r) technology. All of these features combine to create the aggressive ATAK(r) sound. It provides a more exciting driving experience without any drone. The Merge X Pipe blends the combustion pulses from both sides of the engine for improved performance and a custom sound. Borla(r)'s Polyphonic Harmonizer Technology